<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <form action="/post_do" method="post">
        <p>
            用户名:<input type="text" name="uname">
        </p>
        <p>
            用户密码:<input type="password" name="upwd">
        </p>
        <p>
            <button type="submit">提交</button>
        </p>
    </form>
</body>
</html>